Dust-proof drawer.



C. C. BRIEN.

DUST PROOF DRAWER.

APPLICATION FILED DEC. 7, 1908.

Patented Mar. 22, 1910.

ENE? @JTATS RAE-TENT @FFEQ.

CHARLES COYNE BRIEN, 0F LIVERPUOL, ENGLAND.

DUST-PROOF DRAWER.

Spee-ificatiomof Letters Eat-tent.

Application filed December 7, 1908.

Patented Mar. 22. iaio.

Serial No. 466,256.

To all whom it may concem:

Be it known that I, CHARLES CoYNE Burma, a subject of the King of Great Britain, residing at Liverpool, England, have invented certain new and useful Improvements in Dust- Proof Drawers, of which the following is a specification.

This invention relates to drawers provided with dust-excluding devices. .Hitherto these appliances have not been perfectly etficient inasmuch as they have depended to a greater or less extent for their efiiciency upon the dust-proof, and consequently accurate and expensive, construct-ion of the casing or framework itself in which the drawers slide, and also upon the degree of accurate fitting of the drawer in the casing.

The object of my invention is to provide a drawer with a cover which shall make a perfectly close joint all around the top edges of the drawer, thus entirely'excluding dust. With this method in which each drawer is fitted with its own inclosing cover or lid it will be apparent that the dust excluding efficiency of the arrangement is quite independent of the fit of the drawer in the cas- E of the ing or of the class of workmanshi casing, and a much more economical and li 'hter construction of easing may therefore be adopted.

The invention is illustrated in the accompanying drawings, in which,

Figure 1. is a longitudinal'section on the from the rear showing a drawer and its In carrying out. the invention 1 make use of a cover 1 preferably of three ply or venesta boarding and framed with a rounded edge 2 on its front and two sides 3. The

inside of the front 4 of the drawer and the as shown more clearly in Fig. 4, so'that the cover can pass the back as the drawer is drawer rails 10 and runners 11 by means of screws or otherwlse, so that when the drawer is pulled out the cover 1 remains behind in place, see Fig. 2, and when the drawer is pushed in the cover edges 2 and 3 andtongued piece 9 enter their corresponding grooves 6 and 8 in the drawer, the cover then forming a closed lid to the drawer and dust is thus entirely excluded independently of any cooperation of the framework or casing. It is preferred to use strips 12 between the cover 1 and rails or runners 10, 11, which strips serve as distance pieces for the cover and also as guides for the upper edges of the drawer sides above the grooves (3, thus preventing binding of the drawer sidewise in the casing.

Drawers fitted with dust excluding de vices in the way described adapted to completely inclose the drawer when shut, present many advantages over previous devices designed to efiect this object, inasmuch as each drawer becomes a separate and self inclosed unit, independent-as far as relates to its dust proof characterof the quality of workmanship, mode of construction, or type of the framework or casing, or of the accurate fitting of the drawer in the framework.

Figs. 1, 2, and 3, of the drawings show the present usual arrangement. of construction of casing where the front and rear rails 10 are framed to the runners 11 and fitted with dust boards 13. Such dust boards are necessary where the drawers are open at the top, but with my invention where. each drawer is provided with its own separate dust proof cover these dust boards .13 are unnecessary and may be entirely dispensed with and consequently also the back rail 10 may be eliminated, leaving merely the front 1 rail 10 and side runners 11. Again, my invention would be equally elfective in that type of work where from the fitting of a broad vertical pilaster designed to give a heavy appearance to the work, the drawer sides are necessarily some distance away from the interior vertical partitioning in the framework, and where other dust proof devices dependent upon a close fit at the sides would be ineffective.

While I have shown one typeof engagement of the cover and the drawer I do not confine myself to this precise method, since i it will be obvious there are several types of dust proof joints which would be equally applicable for the. purpose, but the essential feature characterizing my invention is the absolute closing or sealing of the drawer I when shut by a separate cover distinct from a tongue piece atthe rear of said cover; a

drawer sliding within the casing; inner grooves on the front and sides of the drawer, and an outer groove on the hack of the drawer, the inner and outer grooves in the drawer beingadapted to mesh with the edges of the cover and the tongue piece respectively when the drawer is shut.

2., In combination,- a drawer casing; 21

eoaeoe separate drawer cover afixed to the casing and mounted upon guide strips so as to project beyond the outer edges thereof; a tongue piece at the rear of the cover; a drawer hav ing aback lower than its front and sides and sliding within the casing so as to be guided by the cover and the strips inner grooves on the front and sides of the drawer and an outer groove on the back of the drawer, the inner and outer grooves in the drawer being adapted to mesh with the edges of the cover and the tongue piece respectively when the drawer is shut.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES CUYNE BRIEN. Witnesses:

W. Soor'r,v A. J. DAVIS. I 

